Extensive Listening (EL) is a teaching approach that emphasizes the provision of authentic, comprehensible, and fun aural input for an extended time period in order to improve language proficiency, especially the listening ability, of L2 learners. This presentation provides 5 compelling reasons why EL should be implemented in L2 classrooms: no conclusive evidence regarding the benefits of listening strategy teaching has been found; some studies have found no significant effects of listening strategy teaching on listening ability improvement; my own experience as an EFL learner; EL is regarded as a fun and theoretically sound way to learn L2; and in-class EL should help create more autonomous learners. The presentation will also show how in-class English audio-visual watching (e.g., movies or TV series) with subtitles and/or captions can be implemented and how it can help improve learners’ listening ability as well as increase learners’ confidence, motivation, and self-esteem in their own English language learning outside the classrooms.